A review of past IBOs
Please note: all IBO examination questions are published under the Creative Commons licence CC BY-NC-SA (Attribution-NonCommercial-ShareAlike). The exam papers can be used freely for educational purposes as long as IBO (International Biology Olympiad e.V.) is credited, and new creations are licensed under identical terms. No commercial use is allowed.
Click right to enlarge the graphical summary of IBO participation over the years.
Overview of past IBO hosts
Results, exam papers, websites
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2021: IBO Challenge - A Substitute for the 32nd IBO in Lisbon, Portugal
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2020: IBO Challenge - A Substitute for the 31st IBO in Nagasaki, Japan
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